多层螺旋CT与选择性冠状动脉造影对照研究及其临床应用

目的 评价冠状动脉多层螺旋CT血管造影(MSCTA)的临床应用价值。方法 25例患者均行冠状动脉MSCTA与选择性冠状动脉造影(SCA)，分析右冠状动脉、左冠状动脉主干、前降支和回旋支的通畅性，狭窄发生的部位和严重程度。将MSCTA与SCA结果对照，初步评价MSCTA的临床应用价值。结果 71支MSCTA显示无狭窄的冠状动脉支中，68支与SCA一致；29支显示狭窄的动脉支中，19支与SCA一致。其阴性预测值和阳性预测值分别为95．8％和65．5％；敏感度、特异度和准确度分别为86．4％、87．2％、87，0％。结论 MSCTA作为微创性检查，是评价冠状动脉病变和变异的重要的筛选手段。

Value of multi-spiral CT angiography of coronary artery: correlated with selective coronary angiography

Objective To study the value of multi-spiral computed tomography angiography (MSCTA) in coronary artery. Methods MSCTA was performed in 25 patients. The patency of coronary artery and other branches was examined. The distribution and extent of coronary arterial stenoses were assessed. The findings demonstrated on MSCTA were compared with those seen on selective coronary angiography (SCA). Results Of the 71 coronary arteries and branches without stenoses examined with MSCTA, 68 had identical appearance in both MSCTA and SCA. The distribution and extent of 19 coronary arterial stenoses revealed by MSCTA were correlated exactly with SCA in 29 coronary arterial stenoses. The negative and positive prediction value were 95.8% and 65.5%, respectively. The sensitivity, specificity, and accuracy were 86.4%, 87.2%, and 87.0%, respectively. Conclusion MSCTA as a minimally invasive examination is a valuable method in detecting the diseases or variations of coronary artery.